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Average Price: $915

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$200

$801+

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Based on price data from 2 merchants for "Ashdown Engineering Ashdown ABM-300-EVO IV 300-watt Bass Head". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.

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Description

Introducing the Ashdown Engineering Ashdown ABM-300-EVO IV 300-watt Bass Head, a powerhouse of tone and versatility that takes your bass playing to a new level. This beast has a 300-watt output capacity that makes it perfect for stage performances. It's built with a tube-driven preamp section, offering you a wide spectrum of tones from sparkling clean to crunchy overdrive. The extended 9-band EQ takes your tone-shaping flexibility a step further, allowing you to tune your sound to perfection.

This bass head is part of Ashdown's renowned ABM line, trusted by professional bassists worldwide for delivering their signature sound to audiences. Whether you're rocking out in your garage or performing in front of thousands, the ABM 300 EVO IV is ready to deliver.

The ABM 300 EVO IV's preamp section features variable drive technology. With a dedicated drive knob, you have full control over your tone, from the cleanest cleans to the fattest overdriven thumps. The integrated 1-knob compressor and subharmonic generator ensure your tone is tighter and fuller, helping you command your rightful place in any mix.

Key Features:

  • 300-watt bass amplifier head suitable for all gigging needs
  • Extended 9-band EQ (Bass, Middle, Treble, and 6 sliders at 100Hz, 180Hz, 340Hz, 1.3KHz, 2.6KHz, and 5KHz)
  • Hybrid solid-state and 12AX7 tube preamp
  • Built-in compressor, tuner output, and effects loop
  • Ashdown sub-harmonic generator for accurate subharmonics reproduction
  • 4 secure speakON outputs for connecting speaker cabinets
  • DI output with XLR connection
  • Iconic Ashdown VU meter for input level monitoring

Product specs

Type Hybrid
Number of Channels Single channel
Output Power 300W
Compression Yes
EQ 9-band EQ
Preamp Tubes 1 x 12AX7
Inputs 2 x 1/4" (instrument, line)
Outputs 2 x SpeakON, 2 x 1/4" (tuner/line out), 1 x XLR (DI)
Effects Loop Yes
Footswitch I/O 1 x 1/4" (EQ, compression, overdrive, sub octave)
Footswitch Included No
Cooling System Internal Fan, Rear Air Vents
Power Source Standard IEC AC cable
Height 5.3"
Width 18.6"
Depth 13.1
Weight 26.4 lbs.

FAQs

What type of power output does the Ashdown ABM-300-EVO IV provide?

The Ashdown ABM-300-EVO IV Bass Head delivers 300 watts of power, making it suitable for both rehearsal and live performance settings.

Does the Ashdown ABM-300-EVO IV Bass Head include a built-in compressor?

Yes, the Ashdown ABM-300-EVO IV features a built-in compressor, allowing you to manage your dynamics effectively during performances.

What EQ options are available on the Ashdown ABM-300-EVO IV?

The Ashdown ABM-300-EVO IV comes with a 9-band EQ, providing detailed tonal shaping to tailor your bass sound precisely to your preferences.

Can I use the Ashdown ABM-300-EVO IV with a footswitch?

Yes, the Ashdown ABM-300-EVO IV has a footswitch input for controlling EQ, compression, overdrive, and sub-octave functions, though the footswitch is not included.

Is the Ashdown ABM-300-EVO IV suitable for live gigging?

With its 300-watt output and comprehensive EQ and compression features, the Ashdown ABM-300-EVO IV is well-suited for live performances and can handle various venue sizes.

What are the main connectivity options on the Ashdown ABM-300-EVO IV?

The Ashdown ABM-300-EVO IV offers 2 x SpeakON outputs, 2 x 1/4" tuner/line outs, and an XLR DI output, providing versatile connectivity for different setups.

Andertons Music Co

Andertons Music Co

All About The Bass - Ashdown EVO IV ABM Amp & Cab

Video thumbnail for All About The Bass  - Ashdown EVO IV ABM Amp & Cab by Andertons Music Co

All About The Bass - Ashdown EVO IV ABM Amp & Cab

Andertons Music Co

Andertons Music Co

Video thumbnail for Ashdown ABM EVO IV by Ashdown Engineering

Ashdown ABM EVO IV

Ashdown Engineering

Ashdown Engineering

Video thumbnail for Ashdown EVO IV demo by JeezyMcNuggles

Ashdown EVO IV demo

JeezyMcNuggles

JeezyMcNuggles

Reviews

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Ashdown Engineering Ashdown ABM-300-EVO IV 300-watt Bass Head.

Comparisons

  • The Ashdown ABM300 EVO IV is often compared to Ampeg heads, with owners noting that pairing it with an Ampeg 8x10 cab enhances its rock sound.

    Source
  • Fender Rumble amps are perceived as mid-focused, which can be adjusted with EQ, but they lack the "heavy" sound of Ashdown amps according to some users.

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Features and functionality

  • Ashdown amps are known for their distinct, vintage but tight sound, which may not appeal to everyone but is favored for rock genres.

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  • Neo speakers in newer Ashdown models may not replicate the warm, wooly sound of older blue speakers, raising concerns about tonal consistency.

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User experience

  • Users report that Ashdown heads provide ample power, but the cabs often lack the same level of punch and clarity.

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  • Common complaints involve the heaviness of Ashdown gear, making it less appealing for musicians who frequently transport their equipment.

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  • Some users prefer 2x10 configurations for a tighter sound, as Ashdown's 15” speakers can be perceived as less defined.

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Use cases and applications

  • The loudness of the Ashdown ABM300 EVO IV is sufficient for competing with loud guitarists, especially when paired with non-Ashdown cabs.

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  • The Ashdown ABM series is seen as versatile, providing nearly every sound needed, making it a strong contender for diverse musical settings.

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Value and pricing

  • An Ashdown ABM combo priced at $500 is viewed favorably against a $600 Fender Rumble 2x10, especially given the Ashdown's tonal reputation.

    Source

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